CN115156199A - High-precision connection method for new and old pipe networks - Google Patents
High-precision connection method for new and old pipe networks Download PDFInfo
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- CN115156199A CN115156199A CN202210786089.3A CN202210786089A CN115156199A CN 115156199 A CN115156199 A CN 115156199A CN 202210786089 A CN202210786089 A CN 202210786089A CN 115156199 A CN115156199 A CN 115156199A
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- connecting pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/021—Cleaning pipe ends or pipe fittings, e.g. before soldering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
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- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a high-precision connection method for new and old pipe networks, which comprises the following steps: step one, inserting a new connecting pipe into one end of the temporary connection piece, connecting the new connecting pipe and the temporary connection piece in a sealing manner, and then connecting the other end of the new connecting pipe with a water pump; and step two, sleeving the other end of the temporary connection piece into the end part of the old connecting pipe, rotatably arranging an impeller in the other end of the temporary connection piece, inserting the end part of the old connecting pipe into the impeller, arranging brush bristles on the inner wall of the impeller, and then hermetically connecting the old connecting pipe and the temporary connection piece to enable the new connecting pipe and the old connecting pipe to be coaxial with each other. The invention can improve the efficiency of washing the outer wall of the port of the old water pipe and can improve the connection precision of the new and old pipelines.
Description
Technical Field
The invention relates to the technical field of pipe connection, in particular to a high-precision connection method for new and old pipe networks.
Background
The pipe network is formed by densely distributing a plurality of water pipes, and after the water pipes are used for a period of time, some old pipe sections are damaged, new pipelines need to be replaced, and the new pipelines are connected with the rest old pipe sections. However, for the old water pipe pre-buried in the ground, soil scale, sand mud and the like are accumulated on the outer wall of the end opening of the old water pipe, and if the soil scale and the sand mud are not completely removed, the connection precision of the old water pipe and the new water pipe is affected.
In the prior art, the residual outer wall of the port of the old pipeline is generally manually brushed by a brush, because soil and sand are bonded on the outer wall of the port of the old pipeline, the cleaning mode of the brush dry brushing is low in efficiency and labor-consuming, the effect of the dry brushing is poor, the soil and sand are easy to remain, and the connection precision of the new and long-term pipeline is influenced. The industry is in need of solving the above problems.
Disclosure of Invention
The invention aims to provide a high-precision connection method for new and old pipe networks, which can improve the washing efficiency of the outer wall of the port of an old water pipe and can improve the connection precision of new and old pipelines.
A high-precision connection method for new and old pipe networks comprises the following steps:
step one, inserting a new connecting pipe into one end of the temporary connection piece, connecting the new connecting pipe and the temporary connection piece in a sealing manner, and then connecting the other end of the new connecting pipe with a water pump;
step two, sleeving the other end of the temporary connection piece into the end part of the old connecting pipe, rotatably arranging an impeller in the other end of the temporary connection piece, inserting the end part of the old connecting pipe into the impeller, arranging brush bristles on the inner wall of the impeller, and then hermetically connecting the old connecting pipe and the temporary connection piece to enable the new connecting pipe and the old connecting pipe to be coaxial with each other;
step three, water pumped by the water pump enters the temporary connection piece through a new connecting pipe, and the water flow drives the impeller to rotate, so that the brush bristles are driven to rotate, and the outer wall of the end part of the old connecting pipe is washed;
taking out the two connecting pipes from the temporary connection piece, dismounting the water pump, and then connecting one end of the new connecting pipe with the washed end of the old connecting pipe through a normal connection pipe;
wherein, the temporary connection piece comprises a temporary connection pipe, the end part of the temporary connection pipe is provided with a fixing part, the fixing part is used for fixedly connecting and sealing the connecting pipe and the temporary connection pipe, the outer side of the inner wall of the temporary connection pipe is provided with a liquid storage cavity, the inner wall of the temporary connection pipe is provided with a valve seat, the inner wall of the temporary connection pipe is provided with a water inlet hole communicated with the liquid storage cavity, the edge of the water inlet hole is provided with a rubber sealing ring, a switching valve ball is arranged in the valve seat and provided with a rotating rod, the rotating rod penetrates out of the liquid storage cavity, the tail end of the rotating rod is provided with a rotating handle, the switching valve ball is provided with a water through hole, one side wall of the switching valve ball is provided with a water inlet groove, the water inlet groove is arranged along the circumferential direction of the switching valve ball, the water inlet groove is communicated with the edges of orifices at two ends of the water through hole, and the switching valve ball can rotate to the connecting pipe which leads the water inlet groove to face the water inlet side, the water inlet groove is communicated with the water inlet hole, the edge of the water through hole is in sealing contact with the inner wall of the valve seat, the inner wall of one water outlet end of the temporary connecting pipe is provided with an annular water outlet, the annular water outlet is communicated with the liquid storage cavity, two edges of the annular water outlet are provided with axial annular flanges opposite to each other, the outer walls of the two axial annular flanges are sleeved with sliding bearings/rolling bearings, the annular water outlet is provided with an impeller, the impeller comprises a cylinder, two ends of the cylinder are respectively sleeved on the outer rings of the two sliding bearings/rolling bearings, the cylinder is provided with an annular water leakage gap, the local sections of the cylinder at two sides of the annular water leakage gap are fixedly connected into a whole through a plurality of blades, the annular water leakage gap is close to the axial annular flange at the water outlet side, the inner wall of the cylinder is fixedly connected with a plurality of insertion chambers, and the insertion chambers and the inner wall of the cylinder jointly form an insertion chamber, the cleaning piece comprises a wedge block and a snake-shaped reed, wherein the circumferential two side walls of the wedge block respectively abut against the cavity bottom wall and the limiting convex strip, the axial two ends of the wedge block respectively abut against the two axial inner side walls of the insertion cavity, the second inner side wall of the wedge block is an inclined plane, the second inner side wall is matched and mutually abutted against the first inner side wall, a plurality of bundles of bristles are arranged on the second inner side wall, each snake-shaped bundle is distributed in a brush array mode, the bristles penetrate through the snake-shaped reed, the snake-shaped reed is in an S-shaped cross section profile perpendicular to the axial direction, the inner side wall of the wedge block is fixedly connected with the outer side wall of the wedge block, and the reed leaf abuts against the inner side wall of the second inner side wall.
Specifically, the both ends of the pipe of plugging into temporarily all articulate and have two mountings that are half tube-shapes, and two mountings that are half tube-shapes can enclose into the tube-shape jointly, and the inner wall and the edge of mounting all are equipped with sealing rubber, and two mountings that are half tube-shapes can press from both sides the connecting pipe with sealing jointly tightly, and the outer wall of mounting is equipped with the wire casing.
Compared with the prior art, the invention has the beneficial effects that:
the switching valve ball is provided with a water through hole, the side wall of one side of the switching valve ball is provided with a water inlet groove, the water inlet groove is arranged along the circumferential direction of the switching valve ball, and the water inlet groove is communicated with the edges of orifices at two ends of the water through hole. The switching valve ball can rotate to the connecting pipe which enables the water inlet groove to face the water inlet side, so that the water inlet groove is communicated with the water inlet hole, and the edge of the water passing through hole is in sealing contact with the inner wall of the valve seat.
At the moment, the water pump is started, water flows into the temporary connection piece through the new connecting pipe, and water entering the water passing through hole through the water inlet groove can only enter the liquid storage cavity through the water inlet hole because the edge of the water passing through hole is in sealing contact with the inner wall of the valve seat. The water entering the liquid storage cavity flows through the impeller and flows into the connecting pipe through the annular water leakage gap, namely the water flows through the liquid storage cavity and bypasses the switching valve ball. In the process, the water flow impacts the blades of the impeller so as to drive the impeller to rotate.
The impeller is driven by water flow and the rotating direction is taken as the rotating direction, one side of the insertion cavity close to the rotating direction along the circumferential direction is provided with an insertion opening, and the insertion opening is used for detachably inserting the cleaning piece. The cleaning piece comprises a wedge block and a snake-shaped reed, two circumferential side walls of the wedge block are respectively abutted against the cavity bottom wall and the limiting convex strip, the inner side of the snake-shaped reed is fixedly connected with the wedge block, the outer side of the snake-shaped reed is abutted against the inner wall of the cylinder body, the second inner side wall and the first inner side wall are kept to be abutted against each other, therefore, the cleaning piece can be stably positioned in the insertion cavity, and the insertion opening of the insertion cavity faces to the rotating direction, so that when the bristles wash old connecting pipe, the reaction force of the pipe wall of the connecting pipe faces to the insertion direction of the cleaning piece, namely, the cavity bottom wall of the insertion cavity, therefore, the cleaning piece can not be separated from the insertion cavity due to the reaction force received when the bristles are washed, and the effectiveness of the cleaning piece and the insertion cavity is ensured.
The cleaning pieces (brush hairs) rotate along with the rotation of the impeller, so that the outer wall of the end part of the old connecting pipe is washed, and the outer wall of the end part of the old connecting pipe can be washed clean more efficiently and thoroughly in cooperation with the washing of water flow. After brushing the outer wall of the end part of the old connecting pipe to a certain degree, the switching valve ball can be rotated to the position where the water passing through hole is coaxial with the temporary connecting piece, so that the dirt is flushed away by larger water flow.
After the outer wall of the end part of the old connecting pipe is washed, the steel wire of the wire groove is detached, the fixing parts at the two ends of the temporary connecting piece are opened, the old connecting pipe and the new connecting pipe are drawn out, and the washed old connecting pipe and the washed new connecting pipe can be connected by using the normal connecting pipe. At the moment, the outer wall of the end part of the old connecting pipe is thoroughly washed, so that when the connecting pipe is connected with a new connecting pipe, the connection precision can be improved. Therefore, the old connecting pipes of the underground pipe network are washed one by one in sequence, and the working efficiency and the connection precision of the old and new pipelines can be greatly improved.
If need change when the cleaning member, bulldoze the second inside wall middle part of cleaning member through keeping away empty breach with strip sharp thing, in order to bulldoze the second inside wall to its edge that is close to in the inserted hole crosses spacing sand grip (this in-process, snakelike reed by compression deformation), then, the contact point that bulldozes of control strip sharp thing removes toward the inserted hole direction a little, can be close to in one side of rotation direction with the cleaning member and release the inserted hole, then, can use strip sharp thing to dial out the cleaning member is whole, in order to change new cleaning member.
Drawings
Fig. 1 is a view showing a temporary docking piece and a connection pipe in an assembled state;
fig. 2 is a sectional view of the temporary connection member and the connection pipe in a combined state;
fig. 3 is a partial view of a sectional view of the temporary connection piece in combination with the connection tube;
FIG. 4 is a view showing an assembled state of the impeller and the cleaning member;
FIG. 5 is a view of the impeller;
FIG. 6 is a view of a cleaning member;
FIG. 7 is a sectional view showing the combination state of the impeller and the cleaning member;
FIG. 8 is an enlarged partial view taken at B in FIG. 7;
fig. 9 is an exploded view of the temporary docking pipe and the fixing member;
FIG. 10 is a schematic flow chart of the present invention.
The various reference numbers in the figures mean:
100. a connecting pipe;
200. a temporary connection;
210. a temporary connection pipe; 210A, a liquid storage cavity; 211. a fixing member; 212. a water inlet hole; 213. switching the valve ball; 214. an annular water outlet; 215. an impeller; 2151. a barrel; 2152. an annular water leakage gap; 216. a blade; 217. an insertion chamber; 219. an axial annular flange;
224. an insertion cavity; 225. a cleaning member; 2251. a wedge block; 2252. a serpentine reed; 2253. a second inner side wall; 2254. brushing; 227. a first inner side wall; 229. a cavity bottom wall;
233. limiting convex strips; 234. avoiding a gap; 235. an axially inner sidewall; 236. a water passing through hole; 237. a water inlet tank; 238. a valve seat; 239. a wire slot;
240. the handle is rotated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, a high-precision connection method for new and old pipe networks includes the following steps:
step one, inserting a new connecting pipe 100 into one end of the temporary connection member 200, hermetically connecting the two, and then connecting the other end of the new connecting pipe 100 with a water pump (not shown);
step two, sheathing the other end of the temporary connection piece 200 into the end of the old connecting pipe 100, rotatably arranging an impeller 215 inside the other end of the temporary connection piece 200, inserting the end of the old connecting pipe 100 into the impeller 215, arranging bristles 2254 on the inner wall of the impeller 215, and then hermetically connecting the old connecting pipe 100 and the temporary connection piece 200 to enable the new connecting pipe 100 and the old connecting pipe 100 to be coaxial with each other;
step three, water pumped by the water pump enters the temporary connection piece 200 through the new connecting pipe 100, and the water flow drives the impeller 215 to rotate, so that the brush bristles 2254 are driven to rotate, and the outer wall of the end part of the old connecting pipe 100 is brushed;
step four, taking out both the connecting pipes 100 from the temporary connector 200, detaching the water pump, and then connecting one end of the new connecting pipe 100 with the washed end of the old connecting pipe 100 through a normal connector (not shown).
The temporary connection piece 200 includes a temporary connection pipe 210, a fixing member 211 is disposed at an end of the temporary connection pipe 210, and the fixing member 211 is used to fixedly connect and seal the connection pipe 100 and the temporary connection pipe 210.
Referring to fig. 2, a liquid storage cavity 210A is provided outside the inner wall of the temporary connecting pipe 210. The inner wall of the temporary connecting pipe 210 is provided with a valve seat 238, the inner wall of the temporary connecting pipe 210 is provided with a water inlet 212 communicated with the liquid storage cavity 210A, and the edge of the water inlet 212 is provided with a rubber sealing ring (not shown). The valve seat 238 is internally provided with a switching valve ball 213, the switching valve ball 213 is provided with a rotating rod, the rotating rod penetrates out of the liquid storage cavity 210A, and the tail end of the rotating rod is provided with a rotating handle 240. The inner wall of the revolute pair where the rotary rod is located is sealed by a rubber seal ring (not shown in the figure).
Referring to fig. 2, the switching valve ball 213 is provided with a water through hole 236, a water inlet groove 237 is arranged on a side wall of one side of the switching valve ball 213, the water inlet groove 237 is arranged along the circumference of the switching valve ball 213, and the water inlet groove 237 communicates the edges of the openings at the two ends of the water through hole 236. The switching valve ball 213 can be rotated to the connection pipe 100 (shown in fig. 2) with the water inlet groove 237 facing the water inlet side, so that the water inlet groove 237 is communicated with the water inlet hole 212, and the edge of the water passing hole 236 is maintained in sealing contact with the inner wall of the valve seat 238.
Referring to fig. 2 and 3, an annular water outlet 214 is formed in the inner wall of the water outlet end of the temporary connecting pipe 210, and the annular water outlet 214 is communicated with the liquid storage cavity 210A. Both edges of the annular water outlet 214 are provided with axial annular flanges 219 opposite to each other, and the outer walls of both the axial annular flanges 219 are sleeved with sliding/rolling bearings (not shown). An impeller 215 is arranged at the annular water outlet 214.
Referring to fig. 4 to 8, the impeller 215 includes a cylinder 2151, and both ends of the cylinder 2151 are respectively sleeved on the outer rings of the two sliding bearings/rolling bearings (referring to fig. 2 and 3, a gap between the end of the cylinder 2151 and the axial annular flange 219 is used for mounting the sliding bearings/rolling bearings). The barrel 2151 is provided with an annular water leakage gap 2152, and partial sections of the barrel 2151 at two sides of the annular water leakage gap 2152 are fixedly connected into a whole by a plurality of blades 216. The annular water leak 2152 is adjacent to the axial annular flange 219 on the outlet side.
Referring to fig. 4 to 8, the inner wall of the cylinder 2151 is fixedly connected with a plurality of insertion chambers 217, and the insertion chambers 217 and the inner wall of the cylinder 2151 form an insertion cavity 224. Taking the direction in which the impeller 215 is rotated by the water flow as the rotation direction (see fig. 2, 4, and 5), the insertion cavity 224 is provided with an insertion opening at a side close to the rotation direction along the circumferential direction, and the insertion opening is used for detachably inserting the cleaning element 225.
Referring to fig. 4 to 8, the cavity bottom wall 229 of the insertion cavity 224 is arranged in a radial direction, the first inner sidewall 227 of the insertion cavity 224 is an inclined surface, and the included angle between the first inner sidewall 227 and the cavity bottom wall 229 is 83 ° to 87 °, so that the cross section of the insertion cavity 224 perpendicular to the axial direction is gradually narrowed in the rotation direction (see fig. 8). The edge of the first inner sidewall 227 close to the insertion opening is provided with a limit protrusion 233 protruding outward in the radial direction. The edge of the first inner sidewall 227 close to the insertion opening is provided with a plurality of clearance gaps 234.
As shown in fig. 6, cleaning element 225 includes a wedge 2251 and a serpentine-shaped spring 2252, wherein both circumferential side walls of wedge 2251 abut against cavity bottom wall 229 and stopper rib 233 (see fig. 8), respectively, and both axial ends of wedge 2251 abut against both inner side walls 235 of insertion cavity 224 (see fig. 5), respectively. Referring to fig. 8, the second inner side wall 2253 of the wedge 2251 is sloped such that the second inner side wall 2253 fits into and abuts the first inner side wall 227. The second inner sidewall 2253 is provided with a plurality of bristle bundles 2254, each bristle bundle 2254 being arranged in a row such that the bristles 2254 protrude through the clearance gap 234.
Referring to fig. 7 and 8, the cross-sectional profile of the serpentine 2252 perpendicular to the axial direction is "S", the inner side of the serpentine 2252 is fixed to the wedge 2251, and the outer side of the serpentine 2252 abuts against the inner wall of the barrel 2151, so that the second inner sidewall 2253 abuts against the first inner sidewall 227.
Specifically, as shown in fig. 9, two ends of the temporary connecting pipe 210 are hinged to two semi-cylindrical fixing members 211, and the two semi-cylindrical fixing members 211 can jointly form a cylinder. The inner wall and the edge of the fixing member 211 are both provided with sealing rubber, the two semi-cylindrical fixing members 211 can clamp the connecting pipe 100 together in a sealing manner, and the outer wall of the fixing member 211 is provided with a wire groove 239.
The working process of the high-precision connection method for the new and old pipe networks comprises the following steps:
the new connection tube 100 is inserted into one end of the temporary connection member 200, and then the two fixing members 211 at the one end clamp the new connection tube 100 and are fastened by the wire at the wire groove 239, so that the two fixing members 211 are fixed and liquid-tight with the new connection tube 100 and the temporary connection tube 210. Then, the other end of the new connection pipe 100 is connected to a water pump (not shown).
Then, the other end of the temporary connector 200 is fitted into the end of the old connection tube 100, so that the fixing member 211 at the other end of the temporary connector 200 clamps the old connection tube 100 and is fastened with the wire at the wire groove 239, so that the two fixing members 211, the old connection tube 100 and the temporary connector 210 are fixed and liquid-sealed.
Referring to fig. 2, the switching valve ball 213 is provided with a water through hole 236, a water inlet groove 237 is arranged on a side wall of one side of the switching valve ball 213, the water inlet groove 237 is arranged along the circumference of the switching valve ball 213, and the water inlet groove 237 communicates the edges of the openings at the two ends of the water through hole 236. The switching valve ball 213 can be rotated to the connection pipe 100 (shown in fig. 2) with the water inlet groove 237 facing the water inlet side, so that the water inlet groove 237 is communicated with the water inlet hole 212, and the edge of the water passing hole 236 is maintained in sealing contact with the inner wall of the valve seat 238.
At this time, the water pump is turned on, and water flows into the temporary connector 200 through the new connection tube 100, and since the edge of the water passing through hole 236 is in sealing contact with the inner wall of the valve seat 238, water entering the water passing through hole 236 through the water inlet groove 237 can only enter the liquid storage chamber 210A through the water inlet hole 212. The water entering the reservoir 210A flows through the impeller 215 and into the temporary connection pipe 210 through the annular water leakage gap 2152, i.e., the water flows through the reservoir 210A and bypasses the switching valve ball 213. In the above process, the water flow impacts the blades 216 of the impeller 215, thereby rotating the impeller 215 (refer to fig. 4).
Taking the direction in which the impeller 215 is driven by the water flow to rotate as the rotation direction (see fig. 2, 4, and 5), an insertion opening is provided at one side of the insertion cavity 224 close to the rotation direction along the circumferential direction, and the cleaning member 225 is detachably inserted into the insertion opening. The cleaning element 225 comprises a wedge 2251 and a serpentine 2252, wherein two sidewalls of the wedge 2251 abut against the bottom wall 229 and the stop rib 233 (see fig. 8), respectively, and the inner side of the serpentine 2252 is fixed to the wedge 2251, and the outer side of the serpentine 2252 abuts against the inner wall of the cylinder 2151, so that the second inner sidewall 2253 and the first inner sidewall 227 are kept abutting against each other, therefore, the cleaning element 225 can be stably located in the insertion cavity 224, and the insertion opening of the insertion cavity 224 faces the rotation direction, so that the bristles 2254 are subjected to the reaction force of the wall of the connection pipe 100 when brushing the old connection pipe 100, the reaction force of the bristles 2254 is directed to the insertion direction of the cleaning element 225, i.e. to the bottom wall 229 of the insertion cavity 224, and therefore, the cleaning element 225 cannot be separated from the insertion cavity 224 due to the reaction force of the bristles 2254, thereby ensuring the connection effectiveness of the cleaning element 225 and the insertion cavity 224.
The cleaning member 225 (brush 2254) rotates with the rotation of the impeller 215 to wash the outer wall of the end of the old connection pipe 100, and the outer wall of the end of the old connection pipe 100 can be efficiently and thoroughly washed by the water flow. After the outer wall of the end of the old connection tube 100 is brushed to some extent, the switching valve ball 213 can be rotated to have its water through hole 236 coaxial with the temporary connection member 200, so that the dirt can be washed away with a larger water flow.
After the outer wall of the end of the old connection pipe 100 is washed, the steel wires of the wire groove 239 are removed, the fixing members 211 at both ends of the temporary connection member 200 are opened, and the old connection pipe 100 and the new connection pipe 100 are drawn out, so that the washed old connection pipe 100 and the new connection pipe 100 can be connected by using a normal connection pipe (not shown). Since the outer wall of the end of the old connection pipe 100 is thoroughly washed, the connection accuracy can be improved when the connection pipe is connected to the new connection pipe 100. Therefore, the old connecting pipes 100 of the underground pipe network are washed one by one in sequence, so that the working efficiency and the connection precision of the old and new pipelines can be greatly improved.
If the cleaning element 225 needs to be replaced, a strip-shaped sharp object (not shown) is used to push the middle of the second inner side wall 2253 of the cleaning element 225 through the clearance gap 234, so as to push the second inner side wall 2253 to the edge close to the insertion opening to cross the limit protrusion 233 (in this process, the snake-shaped reed 2252 is compressed and deformed), and then the pushing contact point of the strip-shaped sharp object (not shown) is controlled to move slightly toward the insertion opening, so that the insertion opening can be pushed out from the side of the cleaning element 225 close to the rotation direction, and then the cleaning element 225 can be completely pulled out by the strip-shaped sharp object (not shown), so as to replace a new cleaning element 225.
Claims (2)
1. A high-precision connection method for new and old pipe networks comprises the following steps:
step one, inserting a new connecting pipe (100) into one end of the temporary connecting piece (200), connecting the new connecting pipe and the temporary connecting piece in a sealing manner, and then connecting the other end of the new connecting pipe (100) with a water pump;
step two, the other end of the temporary connecting piece (200) is sleeved into the end part of the old connecting pipe (100), an impeller (215) is rotatably arranged inside the other end of the temporary connecting piece (200), the end part of the old connecting pipe (100) is inserted into the impeller (215), bristles (2254) are arranged on the inner wall of the impeller (215), and then the old connecting pipe (100) and the temporary connecting piece (200) are hermetically connected to enable the new connecting pipe (100) and the old connecting pipe (100) to be coaxial with each other;
step three, water pumped by the water pump enters the temporary connecting piece (200) through the new connecting pipe (100), and water flow drives the impeller (215) to rotate, so that the bristles (2254) are driven to rotate, and the outer wall of the end part of the old connecting pipe (100) is brushed;
taking out the two connecting pipes (100) from the temporary connection piece (200), dismounting the water pump, and then connecting one end of the new connecting pipe (100) with the washed end of the old connecting pipe (100) through a normal connection pipe;
wherein, article (200) of plugging into temporarily including temporarily plug into pipe (210), the tip of temporarily plugging into pipe (210) is equipped with mounting (211), and mounting (211) are used for plugging into pipe (210) fixed connection and sealed with connecting pipe (100) temporarily, its characterized in that: the inner wall of the temporary connecting pipe (210) is provided with a liquid storage cavity (210A), the inner wall of the temporary connecting pipe (210) is provided with a valve seat (238), the inner wall of the temporary connecting pipe (210) is provided with a water inlet hole (212) communicated with the liquid storage cavity (210A), the edge of the water inlet hole (212) is provided with a rubber sealing ring, a switching valve ball (213) is arranged in the valve seat (238), the switching valve ball (213) is provided with a rotating rod, the rotating rod penetrates out of the liquid storage cavity (210A), the tail end of the rotating rod is provided with a rotating handle (240), the switching valve ball (213) is provided with a water through hole (236), one side wall of the switching valve ball (213) is provided with a water inlet groove (237), the water inlet groove (237) is arranged along the circumferential direction of the switching valve ball (213), the water inlet groove (237) communicates the edges of two end orifices of the water through hole (236), the switching valve ball (213) can rotate to a connecting pipe (100) which enables the water inlet groove (237) to face one side, so that the water inlet groove (237) is communicated with the water inlet hole (212), the edge of the water through hole (236) is communicated with the annular water outlet pipe (214), the inner wall of the temporary connecting pipe (210A), the inner wall of which is kept in contact with the annular water outlet hole (214), and the annular water outlet pipe (214) are arranged opposite to each other, the outer walls of the two axial annular flanges (219) are sleeved with sliding bearings/rolling bearings, impellers (215) are arranged at the annular water outlet (214), each impeller (215) comprises a barrel (2151), the two ends of each barrel (2151) are respectively sleeved on the outer rings of the two sliding bearings/rolling bearings, each barrel (2151) is provided with an annular water leakage gap (2152), the partial sections of the barrels (2151) on the two sides of the annular water leakage gaps (2152) are fixedly connected into a whole through a plurality of blades (216), the annular water leakage gaps (2152) are close to the axial annular flanges (219) on the water outlet side, the inner walls of the barrels (2151) are fixedly connected with a plurality of insertion chambers (217), and the insertion chambers (217) and the inner walls of the barrels (2151) jointly form an insertion cavity (224), the direction in which the impeller (215) is driven by water flow to rotate is taken as the rotating direction, one side of the insertion cavity (224) close to the rotating direction along the circumferential direction is provided with an insertion opening, the insertion opening is used for detachably inserting a cleaning piece (225), the cavity bottom wall (229) of the insertion cavity (224) is arranged along the radial direction, the first inner side wall (227) of the insertion cavity (224) is an inclined surface, the included angle between the first inner side wall (227) and the cavity bottom wall (229) is 83-87 degrees, so that the section of the insertion cavity (224) vertical to the axial direction is gradually narrowed along the rotating direction, the edge of the first inner side wall (227) close to the insertion opening is provided with a limiting convex strip (233) protruding outwards along the radial direction, the edge that first inside wall (227) is close to said inserted hole is equipped with a plurality of clearance breach (234), cleaning piece (225) are including voussoir (2251) and snakelike reed (2252), the circumference both sides wall of voussoir (2251) supports and leans on in chamber bottom wall (229) and spacing sand grip (233) respectively, the axial both ends of voussoir (2251) support and lean on in the two-axis inside lateral wall (235) of inserting chamber (224) respectively, second inside wall (2253) of voussoir (2251) are the inclined plane, second inside wall (2253) and first inside wall (227) adaptation and support each other, second inside wall (2253) are equipped with a plurality of bundles of brush hairs (2254), each bundle of brush hairs (2254) are arranged in the form, make brush hairs (2254) wear out through clearance breach (234), snakelike reed (2252) are "S" along the cross-sectional profile that is perpendicular to the axial, the inboard and voussoir (2251) rigid coupling of snakelike reed (2252), the outside of snakelike reed (2252) supports and leans on in barrel (1), make second inside wall (2153) keep leaning on each other.
2. The high-precision connection method for the new and old pipe networks according to claim 1, wherein the method comprises the following steps: the two ends of the temporary connecting pipe (210) are hinged with two semi-cylindrical fixing pieces (211), the two semi-cylindrical fixing pieces (211) can be enclosed into a cylinder shape, sealing rubber is arranged on the inner wall and the edge of each fixing piece (211), the two semi-cylindrical fixing pieces (211) can clamp the connecting pipe (100) in a sealing mode, and a wire groove (239) is formed in the outer wall of each fixing piece (211).
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| CN202210786089.3A CN115156199B (en) | 2022-07-04 | 2022-07-04 | High-precision connection method for new and old pipe networks |
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| CN202210786089.3A CN115156199B (en) | 2022-07-04 | 2022-07-04 | High-precision connection method for new and old pipe networks |
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| CN115156199A true CN115156199A (en) | 2022-10-11 |
| CN115156199B CN115156199B (en) | 2023-03-24 |
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| Publication number | Publication date |
|---|---|
| CN115156199B (en) | 2023-03-24 |
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